Home / 1,296.62-1,777.65-1,273.30

Finding the Fourth Proportional to 1,296.62, 1,777.65 and 1,273.30

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Solution

The fourth proportional to 1,296.62, 1,777.65 and 1,273.30 is: 1,745.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,296.62 : 1,777.65 = 1,273.30 : x
  2. Step 2: Convert to fraction form
    1,296.62/1,777.65 = 1,273.30/x
  3. Step 3: Cross multiply
    1,296.62x = 1,777.65 × 1,273.30
  4. Step 4: Simplify right side
    1,296.62x = 2,263,481.75
  5. Step 5: Solve for x
    x = 2,263,481.75/1,296.62
  6. Step 6: Final answer
    x = 1,745.68

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.